Sennheiser HD 25 1 II Review | 93 Data compared

The Sennheiser HD 25-1 II Adidas Originals are excellent on-ear headphones that excel in tonal balance, neutrality, and dynamic range. Styled in collaboration with Adidas Originals leisurewear, they feature a padded headband that splits in two for a customizable fit, along with a right earpad that rotates 45 degrees, making them highly practical for DJs. Their non-leaky design also makes them great for a daily commute. For those who dislike the sports branding or the sneaker-style packaging, a less expensive, plain black finish is available. Accessories included in the box are an extra long cable, a 3.5mm-to-6.3mm jack adapter, a carry pouch, and an extra set of soft white earpads. The main strengths (pros) of these headphones are their highly detailed performance, impressive dynamics, and a tightly controlled, well-textured bass with plenty of weight. They deliver powerful and emotive vocals, demonstrating great competency as all-rounders. On the downside, the reviewers noted absolutely zero performance or design cons, giving the product a definitive five-star verdict. Whether or not the buyer is a fan of the specific Adidas aesthetics, the headphones are...

Tyll Hertsens of Stereophile evaluates the Sennheiser Amperior, which enhances the legendary, durable, and highly stable on-ear design of the HD 25-1 II with milled aluminum ear cups and a lower 18-ohm impedance for improved consumer portability. While both models are praised for their tight, controlled bass and robust build, the classic HD 25-1 II suffers from high clamping force causing fatigue, and the Amperior, despite its refined sound with enhanced highs, introduces a heavier weight and thinner, less robust cables compared to the original, according to user reviews.

The Sennheiser HD 25-1 II headphonesGo are lauded for their detailed, balanced, and energetic sound, featuring a tight, well-textured bass that does not obscure the mids. Key strengths include exceptional passive sound isolation and a fully modular design that ensures high durability and easy user-replaceable parts. Conversely, user reports highlight significant, high-clamping, on-ear pressure that can cause comfort issues during extended use, along with a narrow soundstage inherent to the closed-back design. Additionally, the ear cups do not rotate flat, limiting storage options for some users. Read more community feedback at Head-Fi.

The Sennheiser HD25-1 II headphonesGo are described in the Gearspace user review as an excellent, well-balanced choice offering high clarity, detail, and tight, accurate bass. Users praised the extremely lightweight and comfortable design, which provides superb noise isolation, practical cable length, and high transparency to the source. Key drawbacks mentioned include discomfort when worn with glasses, although a work-around is possible, along with a high price point. Despite these, they are deemed perfect for professionals requiring portable, durable, and highly accurate monitoring.

The Sennheiser HD 25 1-II Adidas Originals edition is a highly styled, closed-back headphone model widely used by professional DJs for live performances and on-the-road music production. The reviewer found the unboxing experience satisfying, noting that the package includes a carrying bag, an extra pair of soft white ear cushions, and a ¼-inch (6.3mm) stereo jack adapter. Testing across multiple devices—including an iPhone, laptop, and stereo system—revealed an outstanding sound quality marked by proper, impactful bass response and crystal-clear treble performance. The major advantages (pros) highlighted in the review include stellar sound reproduction, an incredibly comfortable fit that remains pressure-free even after five hours of continuous wear, and a closed-back design that successfully blocks external environment noise. On the technical side, the headphones feature a supra-aural ear coupling, a 16–22,000 Hz frequency response, 120dB sound pressure level, and 70 Ω impedance with a 1.5-meter angled cable. The single notable drawback (con) identified by the reviewer is the premium pricing; the branded Adidas Originals edition costs roughly 249 €, representing a significant price jump over the standard model available for around...

The Sennheiser HD 25-1 II is lauded in Head-Fi reviews as a durable, modular on-ear headphone offering exceptional passive noise isolation and a detailed, energetic sound signature with punchy bass. Key advantages include the ability to replace every component, making them a long-lasting tool for monitoring and DJ use. However, significant drawbacks noted are the high clamping force, which causes comfort issues and ear fatigue during extended listening. Additionally, the soundstage is described as quite narrow, and the headphones lack deep sub-bass extension, providing a very in-head audio experience. Read more detailed feedback on Head-Fi.

The Stereophile review of the Sennheiser HD 25-1 II and Adidas Original HD 25 highlights a rugged, modular design where almost every part is replaceable, with the Adidas edition serving as a cosmetic, "electric blue" re-branding of the classic model. They offer a highly secure fit, making them ideal for professionals, though the strong clamping force can lead to discomfort over long periods. Sound is described as punchy and detailed with excellent passive noise isolation, though it presents a relatively narrow soundstage.

The Sennheiser HD 25-1 II headphones are lauded as a durable, on-ear industry standard for professionals, offering exceptional passive noise isolation and balanced, uncolored sound. Pros include a secure fit for active use, modular construction, and included velour/pleather pad options for customized comfort. However, the high clamping force can cause fatigue during long sessions, and switching to the more comfortable velour pads slightly reduces noise isolation, notes the Overclockers review. The clinical, flat sound profile may also lack the bass boost preferred by some casual listeners.

The Sennheiser HD25-1 II is a rugged, lightweight, and highly versatile portable headphone praised for its excellent balance and detailing across various musical genres. Structurally, it features a painfully elementary design made of rough black plastic that resists cracks and scratches, earning a perfect score for build quality. A major standout feature is its total modularity; every single part—including the headband padding, ear cups, and joints—is completely user-replaceable. Additionally, it offers powerful noise isolation that can compete with shallow-insertion in-ear monitors, especially when using the stock vinyl pads. The adjustable dual headband effectively distributes a relatively strong clamping force, making it snug and stable enough for high-movement activities. Sonically, the headphone delivers a well-balanced signature with tight, accurate, and punchy bass that remains well-textured without bleeding into the midrange. The mid-frequency performance is neutral and clear, offering precise instrument separation and excellent articulation. However, the headphone suffers from notable downsides, particularly a very narrow soundstage width and depth, which can make the audio feel compressed compared to full-sized alternative models. Furthermore, the upper midrange struggles to remain smooth, making the...